86720198 has 8 divisors (see below), whose sum is σ = 130179960. Its totient is φ = 43326880.

The previous prime is 86720191. The next prime is 86720201. The reversal of 86720198 is 89102768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86720191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13208 + ... + 18651.

It is an arithmetic number, because the mean of its divisors is an integer number (16272495).

Almost surely, 2^86720198 is an apocalyptic number.

86720198 is a deficient number, since it is larger than the sum of its proper divisors (43459762).

86720198 is a wasteful number, since it uses less digits than its factorization.

86720198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33222.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 86720198 is about 9312.3680124875. The cubic root of 86720198 is about 442.6292267300.

The spelling of 86720198 in words is "eighty-six million, seven hundred twenty thousand, one hundred ninety-eight".